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  • 1
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    Effects of short-term hypoxia and seawater acidification on hemocyte responses of the mussel Mytilus coruscus (2016)
    PANGAEA
    In:  Supplement to: Sui, Yanming; Kong, Hui; Shang, Yueyong; Huang, Xizhi; Wu, Fangli; Hu, Menghong; Lin, Daohui; Lu, Weiqun; Wang, Youji (2016): Effects of short-term hypoxia and seawater acidification on hemocyte responses of the mussel Mytilus coruscus. Marine Pollution Bulletin, 108(1-2), 46-52, https://doi.org/10.1016/j.marpolbul.2016.05.001
    Details
    Publication Date: 2024-03-15
    Description: Hypoxia often intensifies with rising dissolved CO2, but the concurrent effects of hypoxia and acidification on bivalves are largely unknown. In this study, immune responses of hemocytes in the mussel Mytilus coruscus were examined under six combinations of pH (7.3, 7.7 and 8.1) and dissolved oxygen (DO) concentrations (2 mg/ L, 6 mg/L) for 72 h. Generally, total hemocyte account, phagocytosis, esterase and lysosomal content were reduced under low DO and pH conditions, whereas hemocyte mortality and reactive oxygen species production increased under low DO and pH. Both hypoxia and low pH have negative effects on mussels, but the effects of pH are not as strong as DO. Moreover, significant interactions between DO and pH occurred. However, acidification generally doesn't aggravate the effects induced by hypoxia. Acidification and hypoxia may increase disease risk and impact the aquaculture of this species.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthic animals; Benthos; Bicarbonate ion; Brackish waters; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Containers and aquaria (20-1000 L or 〈 1 m**2); EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Hemocyte count; Hemocyte mortality; Laboratory experiment; Lysosomal content; Mollusca; Mytilus coruscus; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Other metabolic rates; Oxygen; Oxygen, standard deviation; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Percentage; pH; pH, standard deviation; Potentiometric; Potentiometric titration; Reactive oxygen species production; Registration number of species; Salinity; Salinity, standard deviation; Shengsi_island_OA; Single species; Species; Temperate; Temperature, water; Time in hours; Type; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 3096 data points
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    DATA PANGAEA
  • 2
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    Combined effects of short-term exposure to elevated CO2 and decreased O2 on the physiology and energy budget of the thick shell mussel Mytilus coruscus (2016)
    PANGAEA
    In:  Supplement to: Sui, Yanming; Kong, Hui; Huang, Xizhi; Dupont, Sam; Hu, Menghong; Storch, Daniela; Pörtner, Hans-Otto; Lu, Weiqun; Wang, Youji (2016): Combined effects of short-term exposure to elevated CO2 and decreased O2 on the physiology and energy budget of the thick shell mussel Mytilus coruscus. Chemosphere, 155, 207-216, https://doi.org/10.1016/j.chemosphere.2016.04.054
    Details
    Publication Date: 2024-03-15
    Description: Hypoxia and ocean acidification are two consequences of anthropogenic activities. These global trends occur on top of natural variability. In environments such as estuarine areas, short-term acute pH and O2 fluctuations are occurring simultaneously. The present study tested the combined effects of short-term seawater acidification and hypoxia on the physiology and energy budget of the thick shell mussel Mytilus coruscus. Mussels were exposed for 72 h to six combined treatments with three pH levels (8.1, 7.7 and 7.3) and two dissolved oxygen (DO) levels (2 mg/L, 6 mg/L). Clearance rate (CR), food absorption efficiency (AE), respiration rate (RR), ammonium excretion rate (ER), O:N ratio and scope for growth (SFG) were significantly reduced, and faecal organic dry weight ratio (E) was significantly increased at low DO. Low pH did not lead to a reduced SFG. Interactive effects of pH and DO were observed for CR, E and RR. Principal component analysis (PCA) revealed positive relationships among most physiological indicators, especially between SFG and CR under normal DO conditions. These results demonstrate that Mytilus coruscus was sensitive to short-term (72 h) exposure to decreased O2 especially if combined with decreased pH levels. In conclusion, the short-term oxygen and pH variation significantly induced physiological changes of mussels with some interactive effects.
    Keywords: Absorption efficiency; Alkalinity, total; Alkalinity, total, standard deviation; Ammonia excretion; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Behaviour; Benthic animals; Benthos; Bicarbonate ion; Brackish waters; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Clearance rate; Containers and aquaria (20-1000 L or 〈 1 m**2); EXP; Experiment; Fecal organic dry mass ratio; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Laboratory experiment; Mollusca; Mytilus coruscus; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Other metabolic rates; Oxygen; Oxygen, standard deviation; Oxygen consumed/Nitrogen excreted ratio; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Potentiometric; Potentiometric titration; Registration number of species; Respiration; Respiration rate, oxygen; Salinity; Salinity, standard deviation; Scope for growth; Shengsi_island_OA; Single species; Species; Temperate; Temperature, water; Temperature, water, standard deviation; Time in hours; Treatment; Type; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 2952 data points
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  • 3
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    Combined effects of short-term exposure to elevated CO2 and decreased O2 on the physiology and energy budget of the thick shell mussel Mytilus coruscus (2016)
    In:  EPIC3Chemosphere, 155, pp. 207-216, ISSN: 00456535
    Details
    Publication Date: 2017-01-06
    Description: Hypoxia and ocean acidification are two consequences of anthropogenic activities. These global trends occur on top of natural variability. In environments such as estuarine areas, short-term acute pH and O2 fluctuations are occurring simultaneously. The present study tested the combined effects of short-term seawater acidification and hypoxia on the physiology and energy budget of the thick shell mussel Mytilus coruscus. Mussels were exposed for 72 h to six combined treatments with three pH levels (8.1, 7.7 and 7.3) and two dissolved oxygen (DO) levels (2 mg L−1, 6 mg L−1). Clearance rate (CR), food absorption efficiency (AE), respiration rate (RR), ammonium excretion rate (ER), O:N ratio and scope for growth (SFG) were significantly reduced, and faecal organic dry weight ratio (E) was significantly increased at low DO. Low pH did not lead to a reduced SFG. Interactive effects of pH and DO were observed for CR, E and RR. Principal component analysis (PCA) revealed positive relationships among most physiological indicators, especially between SFG and CR under normal DO conditions. These results demonstrate that Mytilus coruscus was sensitive to short-term (72 h) exposure to decreased O2 especially if combined with decreased pH levels. In conclusion, the short-term oxygen and pH variation significantly induced physiological changes of mussels with some interactive effects.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 4
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    Effects of short-term hypoxia and seawater acidification on hemocyte responses of the mussel Mytilus coruscus (2016)
    In:  EPIC3Marine Pollution Bulletin, 108(1-2), pp. 46-52, ISSN: 0025326X
    Details
    Publication Date: 2017-06-15
    Description: Hypoxia often intensifies with rising dissolved CO2, but the concurrent effects of hypoxia and acidification on bivalves are largely unknown. In this study, immune responses of hemocytes in the mussel Mytilus coruscus were examined under six combinations of pH (7.3, 7.7 and 8.1) and dissolved oxygen (DO) concentrations (2 mg L− 1, 6 mg L− 1) for 72 h. Generally, total hemocyte account, phagocytosis, esterase and lysosomal content were reduced under low DO and pH conditions, whereas hemocyte mortality and reactive oxygen species production increased under low DO and pH. Both hypoxia and low pH have negative effects on mussels, but the effects of pH are not as strong as DO. Moreover, significant interactions between DO and pH occurred. However, acidification generally doesn't aggravate the effects induced by hypoxia. Acidification and hypoxia may increase disease risk and impact the aquaculture of this species.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 5
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    Combined effects of seawater acidification and high temperature on hemocyte parameters in the thick shell mussel Mytilus coruscus (2016)
    In:  EPIC3Fish & Shellfish Immunology, 56, pp. 554-562, ISSN: 10504648
    Details
    Publication Date: 2017-06-15
    Description: In this work, flow cytometry was used to examine the immune responses of hemocytes in the thick shell mussel Mytilus coruscus exposed to six combinations of pH (7.3, 7.7, and 8.1) and temperature (25 °C and 30 °C) for 14 days. Temperature showed significant effects on all immune parameters throughout the experiment. Generally, the total hemocyte count (THC), phagocytosis (Pha), esterase (Est), and lysosomal content (Lyso) significantly decreased at high temperature. By contrast, the hemocyte mortality (Hm) and reactive oxygen species (ROS) levels increased at high temperature. Moreover, pH significantly influenced all the immune parameters, but its effects are not as strong as those of temperature; only Hm, Est, and THC were negatively affected by pH throughout the experiment. After 7 days, low pH resulted in decreased Lyso and increased Hm and ROS levels. Significant interactions between temperature and pH in most measured parameters from 7 days suggested that long-term combined stress, i.e., low pH and high temperature, would cause more severe effects on mussel health than an individual stressor in the field.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 6
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    Ultrasonic anomalies in La1∕3Sr2∕3MO3 (M=Fe, Mn) (2006)
    American Institute of Physics
    Details
    Publication Date: 2006-01-23
    Print ISSN: 0003-6951
    Electronic ISSN: 1077-3118
    Topics: Physics
    Published by American Institute of Physics
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  • 7
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    Sensitivity-enhanced uncooled infrared detector based on a Lamb wave sensor with polydopamine coating (2019)
    American Institute of Physics
    Details
    Publication Date: 2019-05-06
    Print ISSN: 0003-6951
    Electronic ISSN: 1077-3118
    Topics: Physics
    Published by American Institute of Physics
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  • 8
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    Prediction of soil organic carbon with different parent materials development using visible-near infrared spectroscopy (2018)
    Elsevier
    Details
    Publication Date: 2018-11-01
    Print ISSN: 1386-1425
    Electronic ISSN: 1873-3557
    Topics: Chemistry and Pharmacology , Physics
    Published by Elsevier
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  • 9
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    CHITIN SYNTHASE B: A MIDGUT-SPECIFIC GENE INDUCED BY INSECT HORMONES AND INVOLVED IN FOOD INTAKE IN Bombyx mori LARVAE (2013)
    Wiley
    Details
    Publication Date: 2013-12-14
    Description: Chitin synthase (CHS) is the key regulatory enzyme in chitin synthesis and excretion in insects, and a specific target of insecticides. We cloned a CHS B gene of Bombyx mori ( BmChsB ) and showed it to be midgut specific, highly expressed during the feeding process in the larva. Knockdown of BmChsB expression in the third-instar larvae increased the number of nonmolting and abnormally molting larvae. Exposure to nikkomycin Z, a CHS inhibitor, reduced the amount of chitin in the peritrophic membrane of molted larvae, whereas abnormally elevated BmChsB mRNA levels were readily detected from the end of molting and in the newly molted larvae. Exogenous 20-hydroxyecdysone (20E) and methoprene, a juvenile hormone analogue, significantly upregulated the expression of BmChsB when the levels of endogenous molting hormone (MH) were low and the levels of endogenous juvenile hormone (JH) were high immediately after molting. When levels of endogenous MH were high and those of endogenous JH were low during the molting stage, exogenous 20E did not upregulate BmChsB expression and exogenous methoprene upregulated it negligibly. When the endogenous hormone levels were low during the mulberry-leaf intake process, BmChsB expression was upregulated by exogenous methoprene. We conclude that the expression of BmChsB is regulated by insect hormones, and directly affects the chitin-synthesis-dependent form of the peritrophic membrane and protects the food intake and molting process of silkworm larvae.
    Print ISSN: 0739-4462
    Electronic ISSN: 1520-6327
    Topics: Biology
    Published by Wiley
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  • 10
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    The genome of Mesobuthus martensii reveals a unique adaptation model of arthropods (2013)
    Springer Nature
    Details
    Publication Date: 2013-10-17
    Description: Article Scorpions have maintained the primary anatomical features of their Paleozoic arthropod ancestors. Here, the authors report the genome sequence of Mesobuthus martensii and highlight evidence of genetic and morphological evolution that represents a unique adaptation model of arthropods. Nature Communications doi: 10.1038/ncomms3602 Authors: Zhijian Cao, Yao Yu, Yingliang Wu, Pei Hao, Zhiyong Di, Yawen He, Zongyun Chen, Weishan Yang, Zhiyong Shen, Xiaohua He, Jia Sheng, Xiaobo Xu, Bohu Pan, Jing Feng, Xiaojuan Yang, Wei Hong, Wenjuan Zhao, Zhongjie Li, Kai Huang, Tian Li, Yimeng Kong, Hui Liu, Dahe Jiang, Binyan Zhang, Jun Hu, Youtian Hu, Bin Wang, Jianliang Dai, Bifeng Yuan, Yuqi Feng, Wei Huang, Xiaojing Xing, Guoping Zhao, Xuan Li, Yixue Li, Wenxin Li
    Electronic ISSN: 2041-1723
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General , Physics
    Published by Springer Nature
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